What is the difference between refrigerator direct cooling and air cooling?

The differences between air-cooled refrigerators and direct-cooled refrigerators are as follows:1Refrigerated air-cooled refrigerators use automatic air supply technology, which can quickly refrigerate food with good refrigeration effect; Direct cooling refrigerators use convection technology and do not refrige as fast as air-cooled refrigerators.

2.Noises. Air-cooled refrigerators are more noisy than direct-cooled refrigerators, and more noise may be generated during use.

If you like quiet friends, you should consider whether it is suitable to choose an air-cooled refrigerator. 3.Energy conservation.

Frosting characteristicsThe inside of the air-cooled refrigerator is not easy to frost, and the food can be kept dry independently and will not stick together; Straight refrigerators tend to feel damp, refrigerators tend to frost, and food sticks to each other. Air-cooled refrigerator principle: The principle of air-cooled refrigerator is to use air for refrigeration.

When high-temperature air flows through the built-in evaporator (separated from the inner wall of the refrigerator), the air temperature will decrease due to the high air temperature and the low temperature of the evaporator. At the same time, cold air is blown into the refrigerator. Air-cooled refrigerators are used to reduce the temperature of the refrigerator through this constant cycle.

But there is always water vapor in the air, which condenses when it is cold, so as long as there is heat exchange in the refrigerator, frost will form. Air-cooled refrigerators are not frost-free, but frost condenses on the evaporator. Because it is inside the refrigerator, we can't see it directly when we open the refrigerator door, so it is called frost-free.

Refrigerator is one of the indispensable electrical appliances in life, before buying a refrigerator, not only to consider the capacity, size and other conventional parameters, but also to pay attention to the difference between direct cooling and air cooling. These are two different refrigeration principles, which means that they will show different advantages and disadvantages in actual use, what is the difference between direct cooling and air cooling? How do you choose between different situations?

Both refrigerators have cooling pipes, but the cooling principle is different - the cooling pipes of the direct-cooling refrigerator are located inside or at the back of the refrigerator and freezer, and are directly cooled and refrigerated by natural convection; Air-cooled refrigerators, on the other hand, have a fan to force air supply to form a forced circulation of cold air, so as to achieve the purpose of refrigeration.

For example, a direct-cooled refrigerator is like putting ice cubes directly on the food to cool down, while an air-cooled refrigerator is like a small air conditioner inside the box that blows cold air on the food to cool down.

Because air-cooled refrigerators have an additional fan system than direct-cooled refrigerators, they can cool faster, have better temperature uniformity across multiple ice chambers, and of course, consume more energy and make noise.

The advantage of a direct-cooling refrigerator is that it is more power-efficient.

Generally speaking, the cut-off point for the refrigeration efficiency of air-cooled refrigerators and direct-cooled refrigerators is around 300 liters. If it is a Xiaoice box below 300 liters, the defect of uneven temperature in multiple ice chambers in direct cooling mode is not obvious, you can consider choosing a direct cooling refrigerator to save electricity. However, if you choose a refrigerator with a capacity of more than 300 liters, the advantage of air-cooling is even more obvious, as it can ensure that the temperature is uniform in multiple ice chambers.

Air-cooled refrigerators also have an alias called "frost-free refrigerators". Because its working principle is different from that of the direct cooling type, no matter how long it is used, there is no need for manual defrosting, which brings great convenience to daily use.

However, due to the fact that it will constantly blow air to the food during the working process, it is more likely to cause the food to dry out. Direct-cooled refrigerators have little effect on the moisture content of food.

However, air-cooled refrigerators can provide functions such as deodorization and vacuum preservation that are not available in direct-cooled refrigerators.

Therefore, in real life, you can make a choice according to the capacity of the refrigerator, the type of food, the demand for electricity and other aspects, and make a choice that suits you

The difference is that air cooling consumes more electricity, its energy consumption is higher, but the effect is also better, the food is stored longer, and the effect of direct cooling is more ordinary, but it is very energy-saving.

Direct cooling is very power-efficient and will produce some frost. Air cooling can make food very dry, so that the food can be stored for a longer time, and it is also very power-intensive.

The way of refrigeration of the refrigerator is different, the impact on the refrigerator is different, the help to the refrigerator is different, the power consumed is different, and the way of freezing is different.

Direct cooling and air-cooled refrigerators have their own advantages and disadvantages.

The manufacturing cost of the direct-cooling refrigerator is low, the structure is simple, the electricity is relatively saving, the humidity of the refrigerator is large, and it is especially suitable for preserving fruits and vegetables, but the freezer must be manually defrosted regularly, which is more troublesome, and the temperature in the refrigerator is not as uniform as the frost-free refrigerator, and the temperature difference is large.

The structure of air-cooled refrigerators is relatively complex, so the manufacturing cost is higher, because it is automatic defrosting, the power consumption is larger, because the cold air is blown out by the fan, so the refrigeration speed is fast, the temperature is more uniform, and it is more beneficial to the freezing of food. However, the food stored in the refrigerator is easy to be air-dried, especially for the preservation of fruits and vegetables, and the preserved food is best stored in a container or food bag to avoid being air-dried.

Therefore, according to the advantages and disadvantages of the above-mentioned refrigerators, some manufacturers have launched a hybrid refrigerator with a direct cooling room and an air-cooled refrigerator with an air-cooled refrigerator.

No matter what kind of refrigerator you buy, it is recommended to choose an electronic thermostat, set and adjust it at one time, once and for all, it is not only simple and trouble-free, but also has accurate temperature control and small temperature difference, which is more beneficial to the freezing and preservation of food. The old-fashioned mechanical thermostat must frequently adjust the size of the digital gear according to the ambient temperature of the season, and the temperature control error is very large, which is not conducive to the freezing and preservation of food.

It is recommended to buy an air-cooled refrigerator, preferably an inverter refrigerator.

Direct cooling is equivalent to a radiator, air cooling is equivalent to air conditioning blowing hot air, air cooling refrigeration is faster and more uniform, but the fresh-keeping area is easy to cause water loss of vegetables and fruits, direct cooling refrigeration efficiency is not as fast and uniform as air cooling, and the cost is low.

One: Air-cooled refrigerator.

1.Merit. 1.Frost-free, clean, refreshing and worry-free. An air-cooled refrigerator will not always be wet on the inside like a direct-cooled refrigerator, and the food will not stick to each other.

In addition, air-cooled refrigerators will have a constant circulation of cold air, which will be filtered by the deodorization system, and the internal odor will also be maintained for a long time.

2.Precise temperature refrigeration and more uniform refrigeration. Air-cooled refrigerators refrigerate quickly and the cold air is evenly distributed.

2.Shortcoming. 1.Compared with direct cooling, the air humidity inside an air-cooled refrigerator is low, and some foods may be air-dried without water if they are not isolated with plastic wrap or a crisper box.

2.The internal structure of an air-heated refrigerator is more complex than that of a direct-cooling refrigerator, so it is more expensive to manufacture and more expensive.

Two: direct cooling refrigerator.

2.Low power consumption, low power. The structure of the direct cooling refrigerator is that the evaporator is directly exposed to the box, and the cost will be lower, so it is naturally not expensive.

2.Shortcoming. 1.Slow refrigeration. Direct cooling refrigerators have a slower cooling rate, which can make people feel inconvenient to use.

2.Direct cooling refrigerators must be manually defrosted several times a year, which is relatively troublesome.

Three: the working principle of direct cooling refrigerator and air-cooled refrigerator.

1.Direct cooling refrigerator: We will find that the refrigeration pipes can be directly seen inside the direct cooling refrigerator, so the direct cooling refrigerator also reduces the temperature inside the refrigerator through such cold and heat exchange. However, when the cold air in the refrigerator comes into contact with the refrigeration ducts, frost will form.

2.Air-cooled refrigerator: air-cooled refrigerator and direct-cooled refrigerator are refrigerated through the evaporator, but the evaporator of the air-cooled refrigerator and the inside of the refrigerator are not in direct contact, and the main refrigeration method is also refrigerated by blowing cold air.

Four: Which is better, direct cooling refrigerator or air cooling refrigerator?

1.Whether you want to defrost or not.

With a refrigerator, de-icing is a headache, a direct cooling refrigerator will produce frost ice, while an air-cooled refrigerator has no frost inside, so an air-cooled refrigerator does not need to be manually defrosted, while a direct-cooling refrigerator needs to be defrosted.

2.The preservation effect of food.

The direct cooling refrigerator cools down through heat exchange, and the cooling speed is fast, and the food enters the freshness state faster; The air-cooled refrigerator is cooled by blowing cold air, and in the state of blowing, the food is easy to lose water, which reduces the freshness of the food. Therefore, in terms of freshness, it is better to directly cool the refrigerator.

3.The temperature at which the refrigeration is carried out.

Air-cooled refrigerators have certain advantages in this regard, because air-cooled refrigerators blow cold air, the temperature inside the refrigerator is more uniform, while there will be a certain temperature difference in various places of the direct-cooling refrigerator.

4.Failure rate.

Obviously, the direct cooling refrigerator has a certain advantage, the direct cooling refrigerator is a more traditional refrigerator, so the refrigeration process is also more mature, and the structure is simple, so the failure rate is also low.

The difference between direct cooling and air cooling is that there will be a very thick frost in the direct cooling refrigerator, but very little frost in the air cooling.

Which is better, fridge direct cooling or air cooling? What's the difference? After reading it, I finally knew.

Unconsciously, the refrigerators on the market have formed two camps: co-cooling refrigerators and direct-cooling refrigerators. Users may be overwhelmed by these two relatively unfamiliar words when choosing. Which of the two refrigerators is better, or, depending on your needs, how to choose how to cool your refrigerator.

Today we talk about the advantages of air-cooled refrigerators and direct-cooled refrigerators, allowing users to better know what they are after when they buy. There are so many differences between whether the refrigerator is air-cooled or buy straight cool, and the salesperson will not tell you.

The difference between an air-cooled refrigerator and a direct-cooled refrigerator, the biggest difference between the two refrigerators is the different heat transfer methods. We all know that the so-called "cooling" of the refrigerator is actually a heat exchange process. The heat inside the refrigerator is somehow transferred to the outside of the refrigerator.

The "one way" here is air cooling and direct cooling. Direct cooling refrigerator is the most traditional heat exchange method (before the advent of air-cooled refrigerators, all refrigerators were direct cooling, but there is no word "direct cooling"), that is, the heat exchanger 3354 compressor is started by the inner wall of the refrigerator to reduce the temperature of the evaporator.

The evaporator clings to the inner wall of this refrigerator and absorbs the heat from the refrigerator. It can be understood as a person holding the ice and blowing the wind. Ice is the evaporator, and people are the inside space of the refrigerator.

Air-cooled refrigerators are a type of heat exchange that has only recently become popular. Relying on a fan to blow cold air into the refrigerator while driving away the hot air also lowers the temperature of the evaporator. In addition, the evaporator does not fit snugly against the inner wall of the refrigerator, but in a separate space.

The temperature of this space reduces the role of the evaporator, which is driven into the refrigerator by a fan.

Put an electric fan in front of the ice and sit in front of the electric fan to sit cool. The biggest difference with a direct-cooling refrigerator is that there are more such fans. And the distance between man and ice is subtracted.

The advantages of air-cooled refrigerators, the difference in structure leads to the difference in performance. When in use, air-cooled refrigerators have three major advantages. The temperature is uniform.

People are holding the ice and blowing air, the temperature is low in the place where it touches the ice, and the temperature is high in the place away from the ice. The same goes for direct-cooling refrigerators. The vaporizer is not that big and only exists in one corner of the refrigerator.

The temperature of the direct cooling refrigerator varies. This is why the closer you are to the evaporator area, the lower the temperature, and the food placed in the refrigerator sometimes freezes when it sticks to the inside of the refrigerator. Air-cooled refrigerators don't have this distress at all.

When the cold air blows into the refrigerator, the air inside moves quickly and the temperature is very uniform. In addition, in order to expand the advantage of "uniform temperature", current air-cooled refrigerators are equipped with multiple multi-angle fans to blow cold air in all directions. The temperature is correct.

A direct-cooled refrigerator is directly from the freezer compartment, which absorbs heat and easily produces frost, while an air-cooled refrigerator is blown out of the interior by cold air, which can alleviate the frosting of sulfur when the refrigerator is opened. Moreover, the refrigeration effect of the direct cooling refrigerator is also very slow, and the refrigeration speed of the air-cooled refrigerator is particularly fast, but its noise is particularly large, and the failure rate will be higher than that of the direct cooling refrigerator.

First of all, the effect of refrigeration is completely different, and the refrigeration speed of air-cooled refrigerators is generally faster; Then the noise of the air-cooled refrigerator is generally relatively large, and it also consumes more electricity, and then the structure is more complicated.

The air-cooled refrigerator is circulated by generating cold air through the evaporator, but the refrigeration refrigerator is connected through the refrigeration chamber, and finally produces cold air, and the failure rate of the direct cooling refrigerator is particularly low, and the structure inside is also very simple, which is very power-saving, but the air-cooled refrigerator can play a defrosting effect, and the humidity is relatively small, and the power consumption is very large.

Air-cooled refrigerator is a small fan inside the refrigerator, which achieves cooling through air cooling, which is not suitable for long-term storage and food will be blown dry, and direct cooling refrigerator is to cool the refrigerator through condensants.

In fact, the air-cooled refrigerator means that its wind is also quite strong, and then its coldness is also very high, but the direct cooling refrigerator means that there is no such wind, and it moves very fast, and the difference is also very big.

First, the principle is different: the air-cooled refrigerator is a kind of cold air, which can be generated through the built-in evaporator of the refrigerator, and the cold air circulates and flows through the fan, so that the cold air flows through the entire refrigerator, which finally realizes the cooling, because the existence of the fan is faster. The fridge is faster.

Straight-line refrigerators are connected directly to the cooling pipes of the refrigerator evaporator in the refrigerator and refrigeration chamber. When the evaporator is sucked in, the air closer to the cooling pipe cools faster, forming natural air inside the refrigerator. Convection, lower the temperature.

Second, the advantages are different: the advantage of the direct cooling refrigerator is that the failure rate is low, because of its simple structure, in addition, the direct refrigerator naturally converges, the humidity in the air is large, the moisture of the food can be better preserved, not easy to lose humidity, and more saving electricity. The biggest advantage of an air-cooled refrigerator is automatic defrosting, the high-quality uniformity is relatively good, the humidity is relatively small, the food is relatively dry, and the smell is relatively fresh, but the air-cooled refrigerator is the disadvantage of the refrigerator, and the power consumption is greater.

Direct cooling refrigerator: The evaporator of the refrigerator freezer adopts a composite three-dimensional structure of multi-layer heat exchanger sheets, and fixes the set of fins on the outside of the S-type refrigeration coil wall to increase the cooling capacity of the two high-temperature areas at the top and bottom of the freezer. Press the freezer chamber to 1:

1. Divide the variable temperature chamber, in which the temperature sensor controls the bistable solenoid valve to switch on and off to realize the switching of the refrigerant circuit, and the variable temperature chamber is used as frozen, soft frozen, and refrigerated, and can also be closed.